Slow deep exr

Hi.  I have a user of my viewer, who is dealing with some big deep exrs 
(360Mb-2Gb deep scanlines) generated by Arnold.  He currently is not 
loading the deep data, but just the beauty picture.  The problem is that 
it takes about 2-3 seconds for the beauty image to be read.  It seems 
the OpenEXR reader must skip to the beauty section and in a GB image, 
this takes some noticeable time.

I was wondering:

1) Will saving as a Deep Tile image help?

2) Is there a way for the deep data to be saved at the end of the image, 
instead of (as I am guessing), at the beginning of the image.

Here is a sample image:

https://drive.google.com/open?id=0ByB8hk3_J5VZNDU2SXRjTWMtWm8


Thanks in advance,

-- 
Gonzalo Garramuño